go-common/app/infra/discovery/http/discovery.go
2019-04-22 18:49:16 +08:00

160 lines
3.2 KiB
Go

package http
import (
"net/http"
"strconv"
"time"
"go-common/app/infra/discovery/model"
"go-common/library/ecode"
bm "go-common/library/net/http/blademaster"
)
const (
_pollWaitSecond = 30 * time.Second
)
func register(c *bm.Context) {
arg := new(model.ArgRegister)
if err := c.Bind(arg); err != nil {
return
}
i := model.NewInstance(arg)
if i.Status == 0 || i.Status > 2 {
c.JSON(nil, ecode.RequestErr)
return
}
// register replication
if arg.DirtyTimestamp > 0 {
i.DirtyTimestamp = arg.DirtyTimestamp
}
svr.Register(c, i, arg.LatestTimestamp, arg.Replication)
c.JSON(nil, nil)
}
func renew(c *bm.Context) {
arg := new(model.ArgRenew)
if err := c.Bind(arg); err != nil {
return
}
// renew
c.JSON(svr.Renew(c, arg))
}
func cancel(c *bm.Context) {
arg := new(model.ArgCancel)
if err := c.Bind(arg); err != nil {
c.JSON(nil, ecode.RequestErr)
return
}
c.JSON(nil, svr.Cancel(c, arg))
}
func fetchAll(c *bm.Context) {
c.JSON(svr.FetchAll(c), nil)
}
func fetch(c *bm.Context) {
arg := new(model.ArgFetch)
if err := c.Bind(arg); err != nil {
return
}
c.JSON(svr.Fetch(c, arg))
}
func fetchs(c *bm.Context) {
arg := new(model.ArgFetchs)
if err := c.Bind(arg); err != nil {
return
}
c.JSON(svr.Fetchs(c, arg))
}
func poll(c *bm.Context) {
arg := new(model.ArgPolls)
if err := c.Bind(arg); err != nil {
return
}
ch, new, err := svr.Polls(c, arg)
if err != nil && err != ecode.NotModified {
c.JSON(nil, err)
return
}
// wait for instance change
select {
case e := <-ch:
if len(arg.Treeid) != 0 {
c.JSON(e[strconv.FormatInt(arg.Treeid[0], 10)], nil)
} else {
c.JSON(e[arg.Appid[0]], nil)
}
if !new {
svr.DelConns(arg) // broadcast will delete all connections of appid
}
case <-time.After(_pollWaitSecond):
c.JSON(nil, ecode.NotModified)
svr.DelConns(arg)
case <-c.Writer.(http.CloseNotifier).CloseNotify():
c.JSON(nil, ecode.NotModified)
svr.DelConns(arg)
}
}
func polls(c *bm.Context) {
arg := new(model.ArgPolls)
if err := c.Bind(arg); err != nil {
return
}
if len(arg.Treeid) != len(arg.LatestTimestamp) && len(arg.Appid) != len(arg.LatestTimestamp) {
c.JSON(nil, ecode.RequestErr)
return
}
ch, new, err := svr.Polls(c, arg)
if err != nil && err != ecode.NotModified {
c.JSON(nil, err)
return
}
// wait for instance change
select {
case e := <-ch:
c.JSON(e, nil)
if !new {
svr.DelConns(arg) // broadcast will delete all connections of appid
}
case <-time.After(_pollWaitSecond):
c.JSON(nil, ecode.NotModified)
svr.DelConns(arg)
case <-c.Writer.(http.CloseNotifier).CloseNotify():
c.JSON(nil, ecode.NotModified)
svr.DelConns(arg)
}
}
func polling(c *bm.Context) {
arg := new(model.ArgPolling)
if err := c.Bind(arg); err != nil {
return
}
c.JSON(svr.Polling(c, arg))
}
func set(c *bm.Context) {
var (
arg = new(model.ArgSet)
)
if err := c.Bind(arg); err != nil {
return
}
// len of status,metadata must equal to len of hostname or be zero
if (len(arg.Hostname) != len(arg.Status) && len(arg.Status) != 0) ||
(len(arg.Hostname) != len(arg.Metadata) && len(arg.Metadata) != 0) {
c.JSON(nil, ecode.RequestErr)
return
}
c.JSON(nil, svr.Set(c, arg))
}
func nodes(c *bm.Context) {
c.JSON(svr.Nodes(c), nil)
}